Yahoo! Korea team developed a new tool named Webzari, announced by the Yahoo! Search Blog. The newly developed Webzari is a tool that visuall maps the data from Yahoo! Site Explorer. You can see the tool here.
The blogs says, the Yahoo! Site Explorer interface is based on the search results page experience and returns lists of pages that are indexed, and inlinks to a site, but the Yahoo! Korea team took the basic functionality and gave it an entirely new look. As you mouse over the planets in the Webzari, it gives you more information about the links while clicking on the planets returns the corresponding blog entry or other text. For details about the tool, you can see the Korean version.